Crank-case construction



v. w. PAG

CRANK CASE CONSTRUCTION sei. la, 1924-. y @www Filed Anrl l5. 1921@mom/Woe Patented Sept. 16, 1924... y

PATENT lorf-Fics.

Avieron w.' PAGE, or NEW YORK, N. Y.

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Application filed April 15, 1921. Serial No. 461,713.

To 'all fwwm t may concern:

Be it known that I, VICTOR W. PAG, a citizen of the United States, andaresident of the -city of New York, Kew Gardens, borough of Queens, inthe county of Queens and State of New York, have invented anew andImproved Crank-Case Construction, of which the following is a full,clear, and exact description.

The present invention. relates to new and useful improvements in motorsand it pertains particularly to a new and novel construction of crankcases therefor. Crank cases as commonly constructed have a drain voutletdisposed centrally of the bottom wall thereof and said outlet isgenerally closed by means of a screw plug. In constructions of thischaracter lit is necessary to get beneath the motor to remove vthe screwplug in order that the crank case may be drained, which operation isattendant by various disadvantages.

lt is one of the objects of the present in-- vention to provide a crankcase for motors in which the drain is not centrally disposed withrespect;4 to the bottom wallthereof.

It is a further object of the invention to provide a new and novel meansfor closing the drain opening.

It is a further object of the invention to provide vcontrolling meanslfor the drain opening which controlling means is capable of operationfrom above the motor rather than below the same as is the commonpractice.

With the above and other objects in view, reference is had to theaccompanying drawings, in which.

Figure 1 is a transverse sectional view of a'\motor crank case showingthe inven'- tion applied thereto;

Fig. 2 is a view in elevation plete closure member.

Referring more particularly to the drawings, the reference character 5designates the crank case, the crank shaft and bearof the comings beingdesignated by the reference characters 6 and 7, respectively. Thereference character 8 designates the drain opening and said drain openinis positioned near one of the lower edges of t e crank casein a positionwhere allof the contents of the crank case will drain towards saidopenin Depending from the lower wal of the crank case is an integralnipple or the like' `provide a seat 11.

9 provided with a central passage 10 and the upper end 'of said passage10 is tapered to The reference character 15 designates a housing mountedinteriorly of the crank case 5, and said housing is adapted to have itsupper end closed by means of a screw-threaded plug or the like 16, whichplug 16 is provided 4with amen'- tral opening or passage 17.

'The lower wall of the housing 15 is pro# vided with an opening orpassage .18, and mounted for sliding movement in said passage or opening18, is a plug 19. 4This plug has its lower end tapered as indicated bythe reference character 2O and said tapered portion is adapted to seator engage the tapered portionll of the passage 1() in order to close thedrain opening 8 in the bottom wall of the crank case. provided with areduced extension 21 and said reduced'extension has its upper endbifurcated as at 22. The reduced extensionv of the plug 19 .is slidablymounted in the passage or opening 17 of the screw-threaded member 16 inorder to provide an upper guide for the plug 19. Interposed between theupper end of the plug 19 and the inner face of the screw-threaded member16 and surrounding the lower portion of the reduced portion 12, is acoil spring 23, and said coil spring exerts a pressure down wardlysuificient to maintain the tapered end of thel plug in engagement withthe -seat 11 of the passage 104 in order to provide an e'ective closurefor ing 8.

Pivotally secured in the bifurcated end of the reduced portion 21 as bymeans of a .bolt or the like 24, is a-rod 25, andsaid rod is providedupon its upper end with a handle 26. This rod is adapted.` to extendupwardly from the dcrank case of the. motor to the desired height,preferably beneath the hood of a motor vehicle. This handle 26 isprovided upon one end with a hook'27, and said hook 27 is adapted toengage any one of a plurality of hooks 28 carried by a plate 29 suitablysecured adjacent the motor.

The device operates Ain the following manner:

'Assuming that the crank case has the usual amountof oil therein, and itis desired to drain the same, the handle 26 is the drain open- 'graspedand the hook 27 is disengaged from that lug 28 with which it. isengaged. Upon The plug 19 is an upward pull on the handle 26, thetapered portion 20 of the plug 19 will be disengage from thefseat 11 ofthe drain opening, thus permitting the oilu to flow from the crankcase'. lt is to be understood that this drain opening will be left openjust so long as the hook portion 27 of the handle 26 is engaged with oneof the lugs 28. When it is desired to close the drain opening, the hook27 and the handle 26 are disengaged from -that lug with which they areengaged, and

under the iniuence of the spring 23the tapered portion 20 of the plug 19will be moved into engagement With the seat 1l of the drain opening 8.

- From theforegoing it is apparent that i th present invention providesa new and novel controlling mechanism for openin and closing the drainof the crank case, an

at ,the same time, said operating mechanism is so positioned withrespect to the motor crank case that it is not necessary to get nbeneath the motor' to open the oranti; case d drain.

l claim:

lin a crank case having a disoliarge opening, a chamber formed on one ofthe side Walls of the crank case and positioned infv teriorly thereof, atapered plug having a reduced extension, said tapered plug beingslidably mounted in the bottom Wall oi said interior chamber, a coilspring surrounding the. reduced extension of the tapered plug andserving to maintain the tapered plug in position in the dischargeopening of the crank ease, means exterior of the crank oase foroperating said tapered plug to remove the samev from the drain openingoi the crank case, and means for maintaining said tapered plug out ofengagement with said drain opening against the action of said coilspring.

vieron vv. lenen.

